The singer joined Hillsong Church's Young & Free band on stage at the Belasco Theatre on Thursday night.

Selena Gomez surprised concertgoers with a performance of her song "Nobody" at L.A.'s Belasco Theatre on Thursday evening.

The 23-year-old singer joined Young & Free, a Christian band and youth movement from Sydney, Australia's Hillsong Church, during their scheduled stop at the downtown concert venue while on their Youth Revival tour.

Around 8:50 p.m., Gomez was welcomed to the Hill Street. stage — the same location that Hillsong L.A. congregates weekly for its Sunday services — by loud cheers from the audience to perform the song alongside Young & Free's band members, an attendee told The Hollywood Reporter. She could be seen lifting her arms in the air and encouraging the audience to sing along.

In October, the singer replied on Twitter to a questioning fan who asked what inspired her to write the song on her Revival album. "God," Gomez replied, adding "Nobody is about Him."

The first verse of the God-centered song includes the lyrics "No heart, no hands, no skin, no touch / Can get me there, nowhere enough / To love me like you do, to love me like you do / No kiss, no lips, no feel, no rush / Can you keep me high, I swear no one." That is followed by the chorus "Nobody's gonna love me like you / Nobody."